Phylloteras sigma, new species

Host.--Quercus alba

Gall (pl. 2, fig. 22). — Sessile on underside of leaf near edge in the fall. Fusiform, flattened, the ends slightly curved in reverse directions, up to 4 mm. long by 2 mm. wide, with the larval cell in a depression in the center. It starts to develop late in June. Kare.

Habitat.—East Falls Church, Va., is the type locality. From galls collected October 22, 1940, a living adult was found in out-of-door breeding cage on March 7, 1942. Galls have been seen at Vienna, Va., and Cabin John, Md.; at Ithaca, Manorville (Crosby), and Nyack (Zabriskie), N. Y., and at Washington, D. C. (Pergande). Bassett collected galls in Connecticut.

- LH Weld: (1944) New American Cynipids from galls^©

Reference: https://www.biodiversitylibrary.org/item/32802#page/17/mode/1up